AK1544 Datasheet, PDF (3/37 Pages) Asahi Kasei Microsystems – 1300MHz Integer-N Frequency Synthesizer

3. Block Diagram
[AK1544]
REFIN
CLK
DATA
LE
RFINP
RFINN
LDO
R COUNTER
14 bit
REGISTER
24 bit
SWALLOW
COUNTER
6 bit
PROGRAMABLE
COUNTER
13 bit
PHASE
FREQENCY
DETECTOR
LOCK DETECT
N DIVIDER
+
PRESCALER
-
16/17,32/33,64/65
CHARGE
PUMP
FAST
COUNTER
BIAS
CP
CPZ
SWIN
LD
Fig. 1 Block Diagram
MS1350-E-01
3
2013/03